125208029 has 2 divisors, whose sum is σ = 125208030. Its totient is φ = 125208028.

The previous prime is 125208019. The next prime is 125208053. The reversal of 125208029 is 920802521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124835929 + 372100 = 11173^2 + 610^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125208029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125207992 and 125208010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125208019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62604014 + 62604015.

It is an arithmetic number, because the mean of its divisors is an integer number (62604015).

Almost surely, 2^125208029 is an apocalyptic number.

It is an amenable number.

125208029 is a deficient number, since it is larger than the sum of its proper divisors (1).

125208029 is an equidigital number, since it uses as much as digits as its factorization.

125208029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 125208029 is about 11189.6393596934. The cubic root of 125208029 is about 500.2772182717.

The spelling of 125208029 in words is "one hundred twenty-five million, two hundred eight thousand, twenty-nine".